CN1570692A - Projection display device - Google Patents
Projection display device Download PDFInfo
- Publication number
- CN1570692A CN1570692A CN 03132832 CN03132832A CN1570692A CN 1570692 A CN1570692 A CN 1570692A CN 03132832 CN03132832 CN 03132832 CN 03132832 A CN03132832 A CN 03132832A CN 1570692 A CN1570692 A CN 1570692A
- Authority
- CN
- China
- Prior art keywords
- light
- display unit
- light source
- focus lamp
- equipment according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Projection Apparatus (AREA)
- Liquid Crystal (AREA)
Abstract
A projection display device comprises a light source; a focusing mirror set to focus the light from the source located by one side of light source; a diffraction mirror set which make focusing mirror set located between the source and it to increase the half-brilliance angle of the light sent from said focusing mirror set; a display unit located by the other side of said diffraction mirror to receive light sent by source and provide images; a polarized light splitter(PBS) located in the space encompassed by said display unit and said diffraction mirror set and reflect the light sent from source to the display unit; a refractor set to polarized refract and enlarge the image provide by the display unit.
Description
Technical field
The invention relates to a kind of display device, refer in particular to a kind of projection display equipment that is applicable to little flat-panel screens.
Background technology
Projection display equipment has been widely used in various occasions in recent years, is not only applicable to public situation and plays bulletin or film, has also goed deep into family, becomes the audiovisual entertainment equipment main flow of a new generation.The development trend of projection display equipment is in light weight for development now, volume is little, and the good brightness and the projector of image amplification quality can be provided; Especially portable projector owing to easy to carry, can use whenever and wherever possible, is quite favored.In addition, because the rapid progress of little flat-panel screens and light source thereof makes micro-display can be applicable in the projection display equipment, significantly save the weight and the volume of projector, therefore, if can arrange in pairs or groups a good optical engine, just can obtain good magnified image quality.
On the other hand, general projector, it is in the light traveling process of projection, and often because in the light travel path, during by the combination of a plurality of borders, light causes the minimizing of luminosity because of scattering, make light utilization efficiency reduce the luminosity of loss light source and power consumption degree.
Summary of the invention
Fundamental purpose of the present invention is that a kind of projection display equipment is being provided, and the image that can effectively amplify micro-display and provided reduces the loss of light scattering in the projected light travel path, significantly reduces the weight and the volume of projection arrangement simultaneously, is fit to various occasions and uses.
For realizing above-mentioned purpose, a kind of projection display equipment provided by the invention mainly comprises:
One light source is to provide light;
One focus lamp group is a side that is positioned at this light source, to converge the light that is sent by this light source;
One diffraction mirror group is a side that is positioned at this focus lamp group, makes this focus lamp group between this light source and this diffraction mirror group, to improve half briliancy angle of the light that is transmitted by this focus lamp group;
One display unit, it is the opposite side that is positioned at this diffraction mirror group, make this diffraction mirror group between this focus lamp group and this display unit, and this display unit is not positioned on this focus lamp group and the formed straight line of this diffraction mirror group, to accept by light that this light source was sent and image is provided;
One polarized light separator (PBS) is to be positioned at the space that is surrounded by this display unit and this diffraction mirror group, will be reflexed to this display unit by the light that this light source sent, and the light penetration that this display unit is sent;
One refracting set is with deviation and amplify the image that this display unit provides;
Wherein the light that is sent by this light source is concentrated via this focus lamp group and is penetrated into this diffraction lens set, march to this polarized light separator again, reflex to this display unit through this polarized light separator, and penetrate this polarized light separator again by the light that this display unit provided, arrive this refracting set, form one via this refracting set conversion and amplify real image.
For realizing above-mentioned purpose, another kind of projection display equipment provided by the invention mainly comprises:
One light source is to provide light;
One focus lamp group is a side that is positioned at this light source, to converge the light that is sent by this light source;
One diffraction mirror group is a side that is positioned at this focus lamp group, makes this focus lamp group between this light source and this diffraction mirror group, to improve half briliancy angle of the light that is transmitted by this focus lamp group;
One display unit, it is the opposite side that is positioned at this diffraction mirror group, make this diffraction mirror group between this focus lamp group and this display unit, and this display unit is positioned on this focus lamp group and the formed straight line of this diffraction mirror group, to accept by light that this light source was sent and image is provided;
One polarized light separator (PBS) is to be positioned at the space that is surrounded by this display unit and this diffraction mirror group, will being transmitted through this display unit by the light that this light source was sent, and the light reflection that this display unit is sent;
One refracting set is with deviation and amplify the image that this display unit provides;
Wherein the light that is sent by this light source is concentrated via this focus lamp group and is penetrated into this diffraction lens set, march to this polarized light separator again, and penetrate this polarized light separator to this display unit, and reflect through this polarized light separator again by the light that this display unit provided, arrive this refracting set, form one via this refracting set conversion and amplify real image.
Light source kind of the present invention is unrestricted, is preferably LED, autobulb or Xe bulb.Focus lamp group of the present invention mainly is that the light that light source sends is concentrated, and its kind is unrestricted, is preferably a condenser lens.Diffraction mirror group function of the present invention mainly is that half briliancy angle of this light is improved, and makes the light of scattering originally can be exchanged into directional light, the preferable vertical diffraction eyeglass with of a horizontal diffraction eyeglass that comprises.Display unit kind of the present invention is unrestricted, is preferably a LCD or little flat-panel screens, is more preferred from HTPS micro-display, LCOS micro-display or DMD micro-display.Refracting set of the present invention is in order to amplify the image that this micro-display provides, preferable at least one convex lens, better at least one convex lens and the enlarging lens of comprising of comprising; The function of these convex lens is a magnified image, form one and amplify real image behind mirror, so its number is unrestricted, if the enlargement ratio of convex lens is A, then n convex lens then can reach the enlargement ratio of An.For realizing the light of reflection source, and allow the light penetration on the display simultaneously, this polarized light separator of the present invention is to form an angle X with display unit, this X value is between 0 degree is spent to 90, and this polarized light separator also forms an angle Y with this refraction unit, and this Y value is between 0 degree is spent to 90; This X value and this Y value are better respectively to be 45 degree.The present invention more can optionally comprise a colored runner (color wheel), between this light source and this focus lamp group, to provide image required color.
Description of drawings
Fig. 1 is projection display equipment one a preferable illustration intention of the present invention;
Fig. 2 is another preferable illustration intention of projection display equipment of the present invention.
Embodiment
Your, be described as follows especially exemplified by following preferred embodiment for allowing juror can more understand technology contents of the present invention.
Embodiment 1
Please refer to Fig. 1, Fig. 1 is the preferable illustration intention of projection display equipment of the present invention.Present embodiment comprises a L shell body 100, a light source (Xe bulb) 110, one colored runner 120, a focus lamp group 130, a diffraction lens set 140, one LCOS micro-display, 150, one PBS160, several convex lens 170 (refracting set) and an enlarging lens 180 (convex lens); Above-mentioned diffraction lens set comprises a vertical diffraction sheet and a horizontal diffraction sheet.Wherein, this colour runner 120 is between this light source 110 and this focus lamp group 130, and this focus lamp group 130 is between this colour runner 120 and this diffraction lens set 140.This LCOS micro-display 150 is to be positioned at this light source 110 to form on the perpendicular line of straight line with this diffraction lens set 140, and be equipped with a PBS160 in the space that this diffraction mirror group 140 and this display 150 are surrounded, with display 150 is benchmark, this PBS160 is miter angle and puts, so that good beam split function to be provided.This PBS160 top suitably distance is equipped with a plurality of convex lens 170, just is equipped with convex lens 180 at housing 100 opening parts.The light that is sent by light source 110, via the condenser lens 130 concentrated diffraction lens set 140 that penetrate into, reach the PBS160 place after via this diffraction lens set 140 all light being adjusted to horizontal light, reflex on this micro-display 150 by PBS160, and the light that this micro-display 150 is reflected is to penetrate this PBS160, form one via a plurality of convex lens 170 and 180 and amplify real image, be projected on the screen 190.
Embodiment 2
Please refer to Fig. 2, Fig. 2 is another preferable illustration intention of projection display equipment of the present invention.Present embodiment comprises a L shell body 200, a light source (Xe bulb) 210, one colored runner 220, a focus lamp group 230, a diffraction lens set 240, one LCOS micro-display 250, one PBS260 and convex lens 270, visual required enlargement factor is set up a plurality of convex lens again between convex lens 270 and the PBS260; Above-mentioned diffraction lens set comprises a vertical diffraction sheet and a horizontal diffraction sheet.Wherein, colored runner 220 is between light source 210 and focus lamp group 230, and focus lamp group 230 is between colored runner 220 and diffraction lens set 240.LCOS micro-display 250 is to be positioned on the straight line of light source 210 and 240 formation of diffraction lens set, and diffraction mirror group 240 and display 250 surrounded between in be equipped with a PBS260, with display 250 is benchmark, and PBS260 is miter angle and puts, so that good beam split function to be provided.Just be equipped with convex lens 270 at housing 200 opening parts.
The light that is sent by light source 210, via the condenser lens 230 concentrated diffraction lens set 240 that penetrate into, reach the PBS260 place after via diffraction lens set 240 all light being adjusted to horizontal light again, penetrate PBS260 to micro-display 250, and the light that micro-display 250 is reflected reflects through PBS260 again, then form one and amplify real image, be projected on the screen 280 via convex lens 270.
From the above, the present invention utilizes a good optical engine, the image that effectively amplifies micro-display and provided.This light engine mainly is to utilize convex lens that image is amplified, and therefore, can set up the number of convex lens according to the demand of enlargement ratio; And utilize condenser lens and diffraction lens set etc., the light of concentrating light source to be sent is strengthened brightness, can reduce the not enough problem of brightness that image amplifies often to be had.Simultaneously, utilize a polarized light separator (PBS), the light that light source and display are reflected effectively separates, and institute's amplified images can not be subjected to the interference of light source background; Image quality is quite good.And the present invention can optionally be installed a colored runner additional according to employed micro-display kind, cooperates monochromatic originally micro-display, makes monochromatic originally micro-display can produce color.In addition, apparatus of the present invention are only used micro-display, LED or Xe bulb, and several lens combination optics original papers constitute, no matter weight, volume are all quite light and handy, quite meet the market demand now.
It should be noted that above-mentioned many embodiment are convenient to explanation and are given an example, the interest field that the present invention advocated is from should being as the criterion so that claim is described, but not only limits to the foregoing description.
Claims (20)
1, a kind of projection display equipment is characterized in that, mainly comprises:
One light source is to provide light;
One focus lamp group is a side that is positioned at this light source, to converge the light that is sent by this light source;
One diffraction mirror group is a side that is positioned at this focus lamp group, makes this focus lamp group between this light source and this diffraction mirror group, to improve half briliancy angle of the light that is transmitted by this focus lamp group;
One display unit, it is the opposite side that is positioned at this diffraction mirror group, make this diffraction mirror group between this focus lamp group and this display unit, and this display unit is not positioned on this focus lamp group and the formed straight line of this diffraction mirror group, to accept by light that this light source was sent and image is provided;
One polarized light separator is to be positioned at the space that is surrounded by this display unit and this diffraction mirror group, will be reflexed to this display unit by the light that this light source sent, and the light penetration that this display unit is sent;
One refracting set is with deviation and amplify the image that this display unit provides;
Wherein
The light that is sent by this light source is concentrated via this focus lamp group and is penetrated into this diffraction lens set, march to this polarized light separator again, reflex to this display unit through this polarized light separator, and penetrate this polarized light separator again by the light that this display unit provided, arrive this refracting set, form one via this refracting set conversion and amplify real image.
2, projection display equipment according to claim 1 is characterized in that, wherein this light source is LED, autobulb or Xe bulb.
3, projection display equipment according to claim 1 is characterized in that, wherein this focus lamp group is a condenser lens.
4, projection display equipment according to claim 1 is characterized in that, wherein this diffraction mirror group comprises the vertical diffraction eyeglass with of a horizontal diffraction eyeglass.
5, projection display equipment according to claim 1 is characterized in that, wherein this display unit is a little flat-panel screens.
6, projection display equipment according to claim 1 is characterized in that, wherein this display unit is LCD, LCOS micro-display or DMD micro-display.
7, projection display equipment according to claim 1 is characterized in that, wherein this refracting set comprises at least one convex lens.
8, projection display equipment according to claim 1 is characterized in that, wherein this refracting set comprises at least one convex lens and an enlarging lens.
9, projection display equipment according to claim 1 is characterized in that, wherein this display unit and this polarized light separator form an angle X, and this X value is between 0 degree is spent to 90.
10, projection display equipment according to claim 1 is characterized in that, wherein this polarized light separator and this refraction unit form an angle Y, and this Y value is between 0 degree is spent to 90.
11, according to claim 7 or 8 described projection display equipments, it is characterized in that wherein the axle center of this polarized light separator and these convex lens forms an angle Y, this Y value is between 0 degree is spent to 90.
12, projection display equipment according to claim 1 is characterized in that, it more comprises a colored runner, between this light source and this focus lamp group.
13, a kind of projection display equipment is characterized in that, mainly comprises:
One light source is to provide light;
One focus lamp group is a side that is positioned at this light source, to converge the light that is sent by this light source;
One diffraction mirror group is a side that is positioned at this focus lamp group, makes this focus lamp group between this light source and this diffraction mirror group, to improve half briliancy angle of the light that is transmitted by this focus lamp group;
One display unit, it is the opposite side that is positioned at this diffraction mirror group, make this diffraction mirror group between this focus lamp group and this display unit, and this display unit is positioned on this focus lamp group and the formed straight line of this diffraction mirror group, to accept by light that this light source was sent and image is provided;
One polarized light separator is to be positioned at the space that is surrounded by this display unit and this diffraction mirror group, will being transmitted through this display unit by the light that this light source was sent, and the light reflection that this display unit is sent;
One refracting set is with deviation and amplify the image that this display unit provides;
Wherein
The light that is sent by this light source is concentrated via this focus lamp group and is penetrated into this diffraction lens set, march to this polarized light separator again, and penetrate this polarized light separator to this display unit, and reflect through this polarized light separator again by the light that this display unit provided, arrive this refracting set, form one via this refracting set conversion and amplify real image.
14, projection display equipment according to claim 13 is characterized in that, wherein this light source is LED, autobulb or Xe bulb.
15, projection display equipment according to claim 13 is characterized in that, wherein this display unit is a little flat-panel screens.
16, projection display equipment according to claim 13 is characterized in that, wherein this display unit is LCD, LCOS micro-display or DMD micro-display.
17, projection display equipment according to claim 13 is characterized in that, wherein this refracting set comprises at least one convex lens.
18, projection display equipment according to claim 13 is characterized in that, wherein this refracting set comprises at least one convex lens and an enlarging lens.
19, projection display equipment according to claim 13 is characterized in that, wherein this polarized light separator and this refraction unit form an angle Y, and this Y value is between 0 degree is spent to 90.
20, projection display equipment according to claim 13 is characterized in that, it more comprises a colored runner, gets between the burnt mirror group at this light source and this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132832 CN1570692A (en) | 2003-07-22 | 2003-07-22 | Projection display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132832 CN1570692A (en) | 2003-07-22 | 2003-07-22 | Projection display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1570692A true CN1570692A (en) | 2005-01-26 |
Family
ID=34469955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03132832 Pending CN1570692A (en) | 2003-07-22 | 2003-07-22 | Projection display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1570692A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645832A (en) * | 2011-02-17 | 2012-08-22 | 株式会社尼康 | Projection display device, portable electronic apparatus and digital camera |
| CN103777443A (en) * | 2012-10-19 | 2014-05-07 | 谈顺毅 | Automobile projection display system |
| WO2019109662A1 (en) * | 2017-12-04 | 2019-06-13 | 华为技术有限公司 | Device, optical engine component and method for augmented reality |
| CN110319418A (en) * | 2018-03-29 | 2019-10-11 | 汽车照明罗伊特林根有限公司 | The optical module for automotive headlight with micro mirror |
-
2003
- 2003-07-22 CN CN 03132832 patent/CN1570692A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645832A (en) * | 2011-02-17 | 2012-08-22 | 株式会社尼康 | Projection display device, portable electronic apparatus and digital camera |
| CN103777443A (en) * | 2012-10-19 | 2014-05-07 | 谈顺毅 | Automobile projection display system |
| WO2019109662A1 (en) * | 2017-12-04 | 2019-06-13 | 华为技术有限公司 | Device, optical engine component and method for augmented reality |
| US11269186B2 (en) | 2017-12-04 | 2022-03-08 | Huawei Technologies Co., Ltd. | Augmented reality apparatus and method, and optical engine component |
| CN110319418A (en) * | 2018-03-29 | 2019-10-11 | 汽车照明罗伊特林根有限公司 | The optical module for automotive headlight with micro mirror |
| CN110319418B (en) * | 2018-03-29 | 2023-03-24 | 汽车照明罗伊特林根有限公司 | Light module for a motor vehicle headlight having a micromirror |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8210693B2 (en) | Projection type image display apparatus and projection optical system | |
| US7342724B2 (en) | Rear projection type image display device | |
| US9041868B2 (en) | Projection image display device comprising a plurality of illumination optical systems | |
| CN1669066A (en) | Polarized light source system with reverse optical path | |
| CN1977213A (en) | Liquid crystal projector | |
| JP2002057963A (en) | Display device | |
| CN1800963A (en) | Display projection apparatus | |
| JP2009042454A (en) | Liquid crystal display device and backlight projection unit, and electronic blackboard device using liquid crystal display device | |
| Shikama et al. | 46.2: Optical System of Ultra‐Thin Rear Projector Equipped with Refractive‐Reflective Projection Optics | |
| JP3717654B2 (en) | Color image display device | |
| CN1692306A (en) | Projector | |
| JP2002258212A (en) | Lighting system for projector | |
| TWI234665B (en) | Projection optics unit, projection-type color image display apparatus and rear-projection-type color image display apparatus | |
| CN1570692A (en) | Projection display device | |
| KR20040006925A (en) | Apparatus for image projection | |
| CN1249480C (en) | Projection picture display device | |
| CN210465965U (en) | Two-piece type LCD projector based on PBS light splitting and combining | |
| CN112068391A (en) | Single-chip LCD projection method, projector and optical system thereof | |
| JPH08184798A (en) | Projection display device | |
| JP2003287809A (en) | Rear projection type video display device | |
| TW580591B (en) | Projection display apparatus | |
| TW200914977A (en) | Projector and portable device using the same | |
| KR100800199B1 (en) | Projection system | |
| US20200041887A1 (en) | Protection display system having three-dimensional convex display | |
| CN115933299A (en) | projection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |